Alright, let's solve this math problem step by step. First, we have the number 629. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 28. So, we're going to take the number 629 and add it to itself 28 times.
Step 1: 0 + 629 = 629
Step 2: 629 + 629 = 1258
Step 3: 1258 + 629 = 1887
Step 4: 1887 + 629 = 2516
Step 5: 2516 + 629 = 3145
Step 6: 3145 + 629 = 3774
Step 7: 3774 + 629 = 4403
Step 8: 4403 + 629 = 5032
Step 9: 5032 + 629 = 5661
Step 10: 5661 + 629 = 6290
Step 11: 6290 + 629 = 6919
Step 12: 6919 + 629 = 7548
Step 13: 7548 + 629 = 8177
Step 14: 8177 + 629 = 8806
Step 15: 8806 + 629 = 9435
Step 16: 9435 + 629 = 10064
Step 17: 10064 + 629 = 10693
Step 18: 10693 + 629 = 11322
Step 19: 11322 + 629 = 11951
Step 20: 11951 + 629 = 12580
Step 21: 12580 + 629 = 13209
Step 22: 13209 + 629 = 13838
Step 23: 13838 + 629 = 14467
Step 24: 14467 + 629 = 15096
Step 25: 15096 + 629 = 15725
Step 26: 15725 + 629 = 16354
Step 27: 16354 + 629 = 16983
Step 28: 16983 + 629 = 17612

So, 629*28 = 17612